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公开(公告)号：US20240078976A1
公开(公告)日：2024-03-07
申请号：US18273788
申请日：2022-07-29
发明人： Tianyi CHENG , Haigang QING , Hongda CUI , Sifei AI , Guowei ZHAO , Yang YU , Li WANG , Baoyun WU
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2310/061 , G09G2310/08
摘要： Disclosed is a pixel circuit arranged in a display substrate, which comprises a first driving mode and a second driving mode. Content displayed in the display substrate comprises multiple display frames. In the first driving mode and the second driving mode, the display frames comprise refresh frames. A signal of a second scanning line is the same as that of a third scanning line. The time of which the signal of the second scanning line is an active level signal comprises a first refresh time period, a second refresh time period and a third refresh time period, which sequentially occur at intervals. During the second refresh time period, a signal of a first scanning line is an inactive level signal. The voltage of a signal at a reset voltage end is a positive voltage, and the voltage of a signal at a first initial voltage end is a negative voltage.
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公开(公告)号：US20240242655A1
公开(公告)日：2024-07-18
申请号：US18015084
申请日：2022-01-04
发明人： Baoyun WU , Xiyu ZHAO , Hui ZHAO , Xinbin HAN , Yao LIANG , Kaimin WANG
IPC分类号： G09G3/20
CPC分类号： G09G3/2074 , G09G2300/0861 , G09G2320/0233 , G09G2320/0247 , G09G2320/0673 , G09G2330/021
摘要： A control method of a display panel. The method includes the following steps: determining a target refresh frequency of the display panel; determining a data chopping rule adapted to the target refresh frequency according to the first mapping relationship; providing a data signal to the display panel according to a data chopping rule.
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公开(公告)号：US20240212606A1
公开(公告)日：2024-06-27
申请号：US17915107
申请日：2021-11-25
发明人： Baoyun WU , Xinbin HAN , Xiyu ZHAO , Hui ZHAO , Kaimin WANG
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2310/027 , G09G2310/061 , G09G2310/08
摘要： A control method for a display panel includes: converting gray data of a display picture into a gray voltage at a first refresh frequency; calculating an average gray voltage of the display picture according to the gray voltage of the display picture; determining, according to the average gray voltage of the display picture, a display parameter matched with the display picture; and outputting a control signal of the display picture to the display panel, according to the display parameter matched with the display picture. The control signal includes at least one of the followings: a data keep signal, and an anode reset signal of a light emitting element of the display panel.
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4.发明公开公开(公告)号：US20240290260A1
公开(公告)日：2024-08-29
申请号：US18043467
申请日：2022-02-24
发明人： Guangliang SHANG , Li WANG , Baoyun WU , Xiyu ZHAO , Yu FENG , Libin LIU , Shiming SHI
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2310/08 , G09G2320/0247 , G09G2320/0271 , G09G2330/021
摘要： A parameter adjustment method of a display module includes: setting an initial value of a light-emitting delay time and specified gray levels; based on the initial value of the light-emitting delay time, adjusting the light-emitting delay time stepwise until a value of an adjusted light-emitting delay time exceeds a preset range of the light-emitting delay time, so that values of the light-emitting delay time within the preset range of the light-emitting delay time are obtained; obtaining flicker values of the display module at the specified gray levels for each value of the light-emitting delay time; and determining a preferred value of the light-emitting delay time from the values of the light-emitting delay time according to flicker values corresponding to the values of the light-emitting delay time.
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公开(公告)号：US20240105119A1
公开(公告)日：2024-03-28
申请号：US17637815
申请日：2021-04-23
发明人： Libin LIU , Li WANG , Guangliang SHANG , Yu FENG , Long HAN , Baoyun WU , Shiming SHI
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2320/0233 , G09G2340/0435
摘要： A pixel circuit, a driving method therefor and a display apparatus are provided. The pixel circuit includes a driving sub-circuit, a write sub-circuit, a compensation sub-circuit, a reset sub-circuit, a first light-emitting control sub-circuit, a second light-emitting control sub-circuit, a leak-proof sub-circuit, a storage sub-circuit and a light-emitting element. The reset sub-circuit is configured to reset a fourth node under control of a signal of a light-emitting control signal terminal and reset a fifth node under control of a signal of a reset control signal terminal. The compensation sub-circuit is configured to compensate a threshold voltage of the driving sub-circuit to the fifth node under the control of a signal of a first scanning signal terminal. The leak-proof sub-circuit is configured to write a signal of the fifth node into a first node under control of a signal of a second scanning signal terminal.
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公开(公告)号：US20220254306A1
公开(公告)日：2022-08-11
申请号：US17488581
申请日：2021-09-29
发明人： Baoyun WU , Zebang GUO , Hui ZHAO
IPC分类号： G09G3/3208
摘要： Embodiments of the present disclosure provide a gamma standard voltage generating circuit, a gamma driving voltage generating circuit and a display device. The gamma standard voltage generating circuit includes: a constant voltage element for outputting a constant voltage; a following voltage element coupled to a driving voltage terminal, for outputting a following voltage changing with a driving voltage of the driving voltage terminal; a selecting element electrically coupled to the constant voltage element and the following voltage element, for outputting the following voltage 10 or the constant voltage as an output voltage; a comparison element electrically coupled to the selecting element, for controlling the selecting element to output the following voltage when the output voltage meets a preset standard, and controlling the selecting element to output the constant voltage when the output voltage does not meet the preset standard; the constant voltage does not meet the preset standard.
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公开(公告)号：US20220084467A1
公开(公告)日：2022-03-17
申请号：US17477955
申请日：2021-09-17
发明人： Baoyun WU , Zebang GUO , Hui ZHAO
IPC分类号： G09G3/3258 , G09G5/10 , G09G3/3291
摘要： A correction method of a cathode voltage is provided, including: controlling an image generator to send a first image test signal including a cathode voltage to a display module to be tested at each brightness level of the display module to be tested; controlling an optical measuring device to measure a first display parameter of the image displayed by the display module to be tested according to the first image test signal; obtaining the first display parameter from the optical measuring device, and determining whether the first display parameter is within a display parameter threshold ramie; progressively adjusting the cathode voltage according to a determination result, and using a second image test signal including an adjusted cathode voltage to test the display module to be tested and obtain a second display parameter until a corrected cathode voltage at a current brightness level is obtained.
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